American Foundation for Continuing Education. Exploring the universe / edited by Louise B. Young ; American Foundation for Continuing Education. - McGraw-Hill, [1963]. - xxviii,457 p. : ill. ; 26 cm. - American Foundation for Continuing Education. Publications. . Includes bibliography. LCCN: 62021787 Subjects--Topical Terms: Science.Astronomy. Subjects--Index Terms: ასტრონომია კოსმოსის კვლევა LC Class. No.: Q111 / .A5 Universal Decimal Class. No.: 524